CN201377623Y - Tee joint reversing valve - Google Patents

Tee joint reversing valve Download PDF

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Publication number
CN201377623Y
CN201377623Y CN200820124595U CN200820124595U CN201377623Y CN 201377623 Y CN201377623 Y CN 201377623Y CN 200820124595 U CN200820124595 U CN 200820124595U CN 200820124595 U CN200820124595 U CN 200820124595U CN 201377623 Y CN201377623 Y CN 201377623Y
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CN
China
Prior art keywords
valve
spool
way diverter
outlet
valve core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN200820124595U
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Chinese (zh)
Inventor
李峰
俞晓龙
黎玉飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzheng Engineering Co Ltd
Original Assignee
BEIJING AEROSPACE WANYUAN COAL CHEMICAL ENGINEERING TECHNOLOGY Co Ltd
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Priority to CN200820124595U priority Critical patent/CN201377623Y/en
Application granted granted Critical
Publication of CN201377623Y publication Critical patent/CN201377623Y/en
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  • Multiple-Way Valves (AREA)

Abstract

The utility model provides a tee joint reversing valve which can be used in the coal chemical industry to deliver pulverized coal. The reversing valve comprises a valve body (2) and a valve core (3), wherein the valve body (2) is provided with an inlet (17), and a first outlet (18) and a second outlet (19) which take the angle of an acute angle (Alpha); the valve core (3) is provided with a first valve core channel (20) and a second valve core channel (21) which are parallel; the valve core (3) can rotate between a first position and a second position with the angle of the acute angle (Alpha); when the valve core (3) is located at the first position, the inlet (17), the first valve core channel (20) and the first outlet (18) constitute a channel which runs through the tee joint reversing valve; and when valve core (3) is located at the second position, the inlet (17), the second valve core channel (21) and the second outlet (19) constitute a channel which runs through the tee joint reversing valve. As the reversing angle of the reversing valve is an acute angle, the impact of a medium to the valve body is greatly reduced and the service life of the reversing valve is prolonged.

Description

Three-way diverter valve
Technical field
The utility model relates to a kind of three-way diverter valve, relates in particular to a kind of Coal Chemical Industry industry that is used for and adopts pressurized gas to carry the three-way diverter valve of powder.
Background technique
The influence that gone up by international crude oil, Gas Prices, domestic Coal Chemical Industry industry (coal for oil project) was developed rapidly in recent years, large-scale coal chemical engineering equipment is investment construction in succession throughout the country, the powder three-way diverter valve as be used in the Coal Chemical Industry tooling equipment to switch the coal dust surveying flow to visual plant, its performance plays a key effect to the operation of whole device.The medium that the coal dust three-way diverter valve is carried is to be carrier with the high pressure nitrogen, solid coal powder particle with certain degree of hardness, during the valve proper functioning, the pulverized coal particle of high-speed motion causes very big impact, wearing and tearing to valve, so require it to have combination properties such as high pressure resistant, shock-resistant, wear-resistant, that flow resistance is little.The plunger type three-way diverter valve of domestic production at present is mainly used in environment under low pressure, and spool is a single channel, and valve commutation angle is generally 150 degree, and valve is long turn around time, and sealing surface is long by the medium flushing time, and sealing surface is easy to wear, thereby causes leakage.Triplet commutation ball valve commonly used, commutation angle are 90 degree.Because MEDIA FLOW is to turning 90 degrees partially, so the valve flow resistance is very big, the passage at valve core inside an angle of 90 degrees turning or it is the worn out thereby pulverized coal particle of high-speed motion very easily weares and teares.Above-mentioned selector valve all can not satisfy the requirement of pressurized gas pulverized coal conveying particle operating mode.
The model utility content
The purpose of this utility model is to overcome above-mentioned defective, and a kind of novel three-way diverter valve is provided, and this selector valve is high pressure resistant, shock-resistant, wear-resistant, the life-span is long, is applicable to high pressure strength pulverized coal conveying particle operating mode.
Three-way diverter valve of the present utility model comprises: valve body, and it has inlet, first outlet and second outlet, and wherein angle is an acute angle between first outlet and second outlet; Spool, it is arranged in the valve body rotationally and has the first parallel valve core channel and second valve core channel.Of the present utility model being characterised in that, spool can be to rotate between the primary importance of described acute angle and the second place at angle, wherein, when spool is in primary importance, inlet, first valve core channel and first export mixes connect the path of described three-way diverter valve, when spool was in the second place, inlet, second valve core channel and second export mixes connected the path of described three-way diverter valve.
Spool of the present utility model adopts Twin channel, and the commutation angle is an acute angle.Therefore, improved valve seat working life because the commutation angle is an acute angle, can reduce the wearing and tearing of valve seat in commutation process; Simultaneously because the commutation angle is an acute angle, so the flow resistance of powder medium obviously reduces, and reduced impact and the wearing and tearing of high speed pulverized coal particle to valve, improves transfer efficiency and valve working life.
Preferably, the angular range of described acute angle is the 15-45 degree, and more preferably, this acute angle is 30 degree.
Preferably, this three-way diverter valve also comprises the valve rod that forms with described spool.
Preferably, this three-way diverter valve also comprises spool is encapsulated in valve gap in the valve body, and be provided with cleaning passage in described valve gap.
Preferably, a plurality of seal rings are set between valve body and the spool, described seal ring is made of the elastomer that inside is provided with spring ring.
Preferably, the internal surface of described valve body, the outer surface of spool, and the internal surface of first valve core channel and second valve core channel all passes through the surface hardening processing.
Preferably, the internal surface of described valve body, the outer surface of spool, and the internal surface of first valve core channel and second valve core channel all adds the cemented carbide lining.
Description of drawings
Fig. 1 is the agent structure sectional view of three-way diverter valve disclosed in the utility model;
Fig. 2 is the sectional view along the M-M line among Fig. 1;
Fig. 3 is for putting sectional view along another of the M-M line among Fig. 1, and wherein spool has rotated angle [alpha] with respect to Fig. 2;
Fig. 4 is the partial enlarged drawing of the valve base sealing structure at the I place among Fig. 3;
Fig. 5 is the perspective diagram of the seal ring at valve seat of the present utility model place;
Fig. 6 is the plan view of the seal ring at valve seat of the present utility model place.
Reference numerals list is as follows:
1. bottom flange; 2. valve body; 3. spool; 4. end-face seal ring; 5. bonnet; 6. graphite annulus; 7. valve rod; 8. screw; 9. bearing; 10.O shape ring; 11. purge mouth; 12. graphite annulus; 13. graphite pads; 14. double-screw bolt; 15. nut; 16. purge mouth; 17. inlet; 18. first outlet; 19. second outlet; 20. first valve core channel; 21. second valve core channel; 22. special-shaped seal ring
Embodiment
Below in conjunction with accompanying drawing the utility model content is further specified:
As shown in Figure 1, three-way diverter valve comprises valve body 2 and Twin channel spool 3, and wherein, the angle that valve body 2 has between inlet 17, first outlet 18 and second outlet 19, the first outlets 18 and second outlet 19 is a sharp angle (seeing Fig. 2 and Fig. 3).Spool 3 is arranged in the valve body 2 rotationally and has first parallel valve core channel 20 and second valve core channel 21 (seeing Fig. 2 and Fig. 3).Bottom flange 1 and bonnet 5 are enclosed in spool 3 in the valve body 2, comprise bearing 9, Sealing and the fastening piece (for example screw 8) etc. that can be connected with rotary cylinder or man-operated mechanism (not shown) in addition.Bottom flange 1 is connected with valve body 2 with nut 15 by double-screw bolt 14 with bonnet 5, and graphite pads 13 can prevent that medium from leaking outside from valve body.Valve rod 7 is the integrated design with spool 3, and the backhaul of avoiding the branch body structure to be produced is poor, thereby guarantees the validity of each valve commutation.Valve rod 7, spool 3 guarantee that by the endoporus of bonnet 5 and the protruding axle positioning and guiding of bottom flange 1 spool 3 can rotate neatly.End-face seal ring 4 constitutes double seal with O shape ring 10, prevents that medium from leaking outside from valve rod 7.Bonnet 5 and bottom flange 1 are provided with cleaning passage.Moment must have a spot of powder to enter body cavity because valve commutates, and long-time the accumulation can cause valve event stuck.Therefore be provided with after the described cleaning passage, the purging mouth 11 of cleaning device and 16 can clean purging to the internal surface of valve body 2 and the outer surface of spool 3 by described cleaning passage, cause valve stuck to prevent the long-term medium of piling up of body cavity, thereby can prolong the plant maintenance cycle, improve the working life of valve.
As shown in Figure 2, during proper functioning, spool 3 is in the second place, and on this position, medium 17 enters valve from entering the mouth, and by second valve core channel 21, flows out valves by second outlet 19.When needs commutate to medium, as shown in Figure 3, provide torque by rotary cylinder or the man-operated mechanism (not shown) that is installed on the bearing 9, make the spool 3 acute angle angle [alpha] that turns clockwise, make spool 3 be in primary importance, thereby medium 17 enter valve from entering the mouth, by first valve core channel 20, flow out valve by first outlet 18, realize the medium commutation.Because after spool 3 adopted Twin channel, the commutation angle became acute angle, has improved commutating speed, has reduced the wearing and tearing of valve seat in commutation process, improved valve seat working life; The angle that commutates simultaneously becomes after the acute angle, and the medium flow resistance reduces, and has reduced the wearing and tearing of high speed medium (for example pulverized coal particle) to valve, improves transfer efficiency and valve working life.Preferably, the angular range of described acute angle is the 15-45 degree, and more preferably, this acute angle is 30 degree.
Shown in Fig. 4,5,6, seal arrangement has all been adopted in four import and export of Twin channel spool 3, and in a preferred embodiment, described seal arrangement is a seal ring 22.Seal ring 22 is made of elastomer, and is provided with spring ring in elastomeric inside.During use, with the pre-compressive strain of spring ring, lip limit part and valve body 3 inner chambers with seal ring 22 fit tightly then.The spring ring of inner prestressing provides the sealing pretightening force can for seal ring 22, simultaneously as dynamic load, realizes special-shaped seal ring 22 dynamic wears compensation, guarantees valve seat director phase reliable sealing.
In order to improve the working life of valve body, spool, preferably, all add hard alloy lining at body cavity, passage and spool cylindrical, passage, be able to take the long-term erosive wear of high speed pulverized coal particle, improve the wear resistance of valve to guarantee valve internal channel and spool; Perhaps body cavity, passage and spool cylindrical, passage are all carried out surface hardening and handle, thereby improve wear resistance.

Claims (9)

1, a kind of three-way diverter valve, it comprises:
Valve body (2), it has inlet (17), first outlet (18) and second outlet (19), and wherein angle is an acute angle (α) between first outlet (18) and second outlet (19);
Spool (3), it is arranged in the valve body (2) rotationally and has parallel first valve core channel (20) and second valve core channel (21);
It is characterized in that, spool (3) can be to rotate between the primary importance of described acute angle (α) and the second place at angle, wherein, when spool (3) when being in primary importance, inlet (17), first valve core channel (20) and first outlet (18) constitute the path that connects described three-way diverter valve, when spool (3) when being in the second place, inlet (17), second valve core channel (21) and second outlet (19) constitute the path of the described three-way diverter valve of perforation.
2, three-way diverter valve according to claim 1 is characterized in that, the scope of described acute angle (α) is the 15-45 degree.
3, three-way diverter valve according to claim 1 and 2 is characterized in that, described acute angle (α) is 30 degree.
According to the described three-way diverter valve of aforementioned arbitrary claim, it is characterized in that 4, this three-way diverter valve also comprises the valve rod (7) that forms with described spool (3).
According to the described three-way diverter valve of aforementioned arbitrary claim, it is characterized in that 5, this three-way diverter valve also comprises spool (3) is encapsulated in valve gap (1,5) in the valve body (2), and be provided with cleaning passage in described valve gap (1,5).
According to the described three-way diverter valve of aforementioned arbitrary claim, it is characterized in that 6, between valve body (2) and the spool (3) a plurality of seal rings (22) are set, described seal ring (22) is made of the elastomer that inside is provided with spring ring.
7, according to the described three-way diverter valve of aforementioned arbitrary claim, it is characterized in that, the internal surface of described valve body (2), the outer surface of spool (3), and the internal surface of first valve core channel (20) and second valve core channel (21) all passes through the surface hardening processing.
8, according to the described three-way diverter valve of aforementioned arbitrary claim, it is characterized in that, the internal surface of described valve body (2), the outer surface of spool (3), and the internal surface of first valve core channel (20) and second valve core channel (21) all adds the cemented carbide lining.
9, according to the described three-way diverter valve of aforementioned arbitrary claim, it is characterized in that, the double seal that is made of end-face seal ring (4) and O shape ring (10) is set between valve gap (5) and the valve rod (7).
CN200820124595U 2008-12-29 2008-12-29 Tee joint reversing valve Expired - Lifetime CN201377623Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200820124595U CN201377623Y (en) 2008-12-29 2008-12-29 Tee joint reversing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200820124595U CN201377623Y (en) 2008-12-29 2008-12-29 Tee joint reversing valve

Publications (1)

Publication Number Publication Date
CN201377623Y true CN201377623Y (en) 2010-01-06

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ID=41517731

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200820124595U Expired - Lifetime CN201377623Y (en) 2008-12-29 2008-12-29 Tee joint reversing valve

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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105090588A (en) * 2014-05-21 2015-11-25 航天长征化学工程股份有限公司 Three-way reversing valve and sealing method thereof
CN109738240A (en) * 2019-03-07 2019-05-10 常州进出口工业及消费品安全检测中心 A kind of device for formulating and its configuration method for hazardous gas quantitative detection

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105090588A (en) * 2014-05-21 2015-11-25 航天长征化学工程股份有限公司 Three-way reversing valve and sealing method thereof
CN105090588B (en) * 2014-05-21 2018-04-20 航天长征化学工程股份有限公司 A kind of three-way diverter valve and its encapsulating method
CN109738240A (en) * 2019-03-07 2019-05-10 常州进出口工业及消费品安全检测中心 A kind of device for formulating and its configuration method for hazardous gas quantitative detection
CN109738240B (en) * 2019-03-07 2024-05-03 常州工业及消费品检验有限公司 Preparation device for quantitative detection of dangerous gas and preparation method thereof

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C56 Change in the name or address of the patentee

Owner name: CHANGZHENG ENGINEERING CO., LTD.

Free format text: FORMER NAME: BEIJING AEROSPACE WANYUAN COAL CHEMICAL ENGINEERING TECHNOLOGY CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 100176 210 floors, No. 6, Tongji North Road, Beijing economic and Technological Development Zone, room two

Patentee after: Aerospace Changzheng Engineering Co.,Ltd.

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Patentee before: Beijing Aerospace Wanyuan Coal Chemical Engineering Technology Co., Ltd.

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